Plant nutrient requirements

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16
votes
1answer
833 views

How can I correct a nutrient excess in soil?

The soil sample I took last fall from my vegetable garden came back from the lab with this result: Optimum Range Calcium, Mehlich 3 (Ca) 2063 ...
14
votes
1answer
4k views

What is my citrus deficiency, based on leaf appearance? And how to treat?

In the images of my citrus below, you can see the leaves are paling towards the edges. What is the deficiency and how can I fix it? The soil is clay-dominated with some sand and coloured red, ...
13
votes
1answer
303 views

What are the primary nutrients utilized by plants beyond NPK?

When talking about soil and fertilizers, what are the primary nutrients in addition to NPK (Nitrogen, Phosphorus, Potassium) that play a major role in plant development?
12
votes
4answers
377 views

Are “minerals” and “nutrients” the same thing?

Some good answers on this question: Is it worth spreading ash on the vegetable plot?. But one answer says: I can't think of any minerals that would be present and the other upvoted answer ...
11
votes
1answer
250 views

What are the differences between above and below ground irrigation?

Is there a major difference in effectiveness of delivery of water/nutrients through the use of above ground (sprinkler, flooding, etc) versus below ground (buried drip pipes) irrigation systems?
8
votes
4answers
403 views

Do any plants add nutrients back into the soil as they grow?

It seems reasonable that there ought to be at least a few symbiotic plant varieties that benefit from improving soil condition for other plants. If not that, are there plants that essentially improve ...
8
votes
2answers
265 views

Is it really necessary to rotate runner beans?

A firm believer in 3-year crop rotation, I sow my runner beans in a different plot every year. After they crop, I dig their stems and roots into the soil, to replenish it with their captured nitrogen; ...
7
votes
1answer
75 views

What are methods of increasing the protein content of garden vegetables?

I read a random article about the effects of a certain fertilizer on tomatoes and how it happened to increase the protein content of the tomatoes relative to other fertilizers (1, 2) and it piqued my ...
5
votes
1answer
96 views

What are the best components for producing compost which supply maximum nutrients?

People made compost from different components but they cannot realize about nutrient amount in the compost. So it is essential for selecting appropriate components. It is very important for organic ...
5
votes
1answer
67 views

Nutritional value of home-compostable plastic?

There are types of compostable plastic that you can compost yourself at home (as opposed to compostable plastic that can only be composted in industrial composting facilities). I was wondering if ...
4
votes
3answers
155 views

My first strawberries of the season are not very flavorful

I have a strawberry patch that I've left go for the past few years. It's gotten rather wild in the back garden as I've had little time to really devote to gardening lately. I went out to the patch ...
4
votes
2answers
88 views

Is it OK to use human waste or spent cat litter for fertilizing edibles?

Is it OK to use human waste or spent cat litter directly into the soil where you grow fruits and vegetables?
4
votes
2answers
279 views

How should I care for a potted apple seedling?

About two weeks ago, a friend of mine ate an apple and found that the seeds had already sprouted inside the apple. I thought this was pretty cool, so I put them in a cup to grow. They grew into ...
4
votes
1answer
62 views

Why are my blackberry leaves tasting like sulfur?

People don't always realise but you can eat a certain amount of blackberry leaves (and use them as herbs to make tea for diarrhea and stuff). The tea usually tastes and smells pretty good (kind of ...
4
votes
1answer
266 views

What nutrient solution is best for hydroponic basil?

What hydroponic nutrient solution is best for growing basil? I'd prefer to know what characteristics to look for rather than a particular brand or product.
3
votes
1answer
42 views

Can frog droppings be used as fertilizer?

In the context I am thinking, I would essentially be mixing the droppings into the topsoil in a plant bed. How much would be too much? How much would be too little to make a difference? Nutrient ...
3
votes
1answer
69 views

What are the pros and cons of different rock dusts?

Rockdust is powdered rock that helps give plants extra minerals (such as silica for strong leaves and stems), trace minerals, calcium, iron etc. They can increase the soil pH somewhat, too. Rockdust ...
3
votes
2answers
120 views

Nutrition for a Navel Orange

Need some help keeping my navel orange healthy. The first image shows the (semi-dwarf) navel orange shortly after I planted it in September 2012 (around 8 to 9 months ago from writing this post). The ...
2
votes
1answer
1k views

How is nutritional value in fruit and vegetables measured?

We often read in books and Wikipedia that certain fruits or vegetables contain certain amount of vitamins, minerals and other elements. An example can be seen on Beetroot in the box with nutritional ...
2
votes
1answer
40 views

How do trees respond to solid, isolated, chunks of minerals such as iron, placed in the root zone?

Let's say you had a cast-iron pan and an apple tree that you were going to plant. Let's say you dug a large hole, threw the pan in and planted the tree near the pan. One might imagine that the tree ...
2
votes
1answer
69 views

What would cause only one cane of a raspberry plant to show nutrient defficiency?

I have a Canby raspberry plant. One cane is showing some form of nutrient deficiency. On other hand, the other stalk is is flourishing and even budding fruit. What would cause this, seeing as the two ...
2
votes
1answer
95 views

Organic method of helping a Manganese deficient lemon tree

My young lemon tree has yellow blotches on some of its leaves, even though the leaves are quite newly grown. This advice suggests that it's likely to be deficient in Manganese, rather than Magnesium, ...
2
votes
1answer
80 views

Does aerating water to raise the pH in nutrient solutions work well?

As anyone who has ever had to tend to a pool painfully discovered, aerating water causes the oxygen to react with something and raise the pH. From what I have read it converts contents of the water ...
2
votes
1answer
59 views

What is this disease or nutrient difficiency on my Parfianka Pomegranate?

I've had a 3 foot tall Parfianka Pomegranate tree planted in the ground for several months. It gets about 7 hours of direct sunlight per day. It's been fertilized with compost, mycorrhizae enriched ...
2
votes
2answers
66 views

Are (water) re-grown spring onions worth it?

Spring onions (or scallions) can be re-grown in water by saving the roots and placing them in water and, as the article in the link suggests, these re-grow in to full spring onions within a matter of ...
1
vote
0answers
37 views

pondplants with a lack of nutrients? [closed]

I have a gardenpond (roughly 16000 litres) which is crystal clear. The pond contains no fish, only amphibians and insect life and a lot of plants. some plants, like the pondweed are real hardhitters ...